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Finding the Fourth Proportional to 253,764.52, 350,209.71 and 139,043.38

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Solution

The fourth proportional to 253,764.52, 350,209.71 and 139,043.38 is: 191,887.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,764.52 : 350,209.71 = 139,043.38 : x
  2. Step 2: Convert to fraction form
    253,764.52/350,209.71 = 139,043.38/x
  3. Step 3: Cross multiply
    253,764.52x = 350,209.71 × 139,043.38
  4. Step 4: Simplify right side
    253,764.52x = 48,694,341,787.22
  5. Step 5: Solve for x
    x = 48,694,341,787.22/253,764.52
  6. Step 6: Final answer
    x = 191,887.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.